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Finding the Fourth Proportional to 111,544.59, 167,316.89 and 28,438.59

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Solution

The fourth proportional to 111,544.59, 167,316.89 and 28,438.59 is: 42,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,544.59 : 167,316.89 = 28,438.59 : x
  2. Step 2: Convert to fraction form
    111,544.59/167,316.89 = 28,438.59/x
  3. Step 3: Cross multiply
    111,544.59x = 167,316.89 × 28,438.59
  4. Step 4: Simplify right side
    111,544.59x = 4,758,257,080.00
  5. Step 5: Solve for x
    x = 4,758,257,080.00/111,544.59
  6. Step 6: Final answer
    x = 42,657.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.